oventrop R-Tronic RT B Installation And Operating Instructions Manual page 28

When the window is opened, the contact in the wireless sensor module (1) will be
interrupted and a signal will be transmitted to the wireless thermostat "R-Tronic".
When using several window contacts, all radiator valves will be closed if only
one window contact is interrupted.
The "window-open" status is displayed on the "R-Tronic" by the following symbol:
The "R-Tronic" respectively wireless actuators will continue control operation as soon
as:
 all windows are closed again or
 the room temperature drops below the frost protection limit of 6°C
2
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Installation and initial operation
1
Illustr. 23
Illustr. 24